Afters hours of digging I have eventually found solution. Updating gentoo updated automake from 1.15 to 1.16
Switching to 1.15 solves issue:
Code:echo "WANT_AUTOMAKE=1.15 make yaud-enigma2" > build rm .deps/enigma2.do_prepare ./build (...)
Patching PLi-HD skin completed. -------------------------------------------------------------- Build of enigma2 completed. ============================================================== Start build of enigma2_release. Copying image to release directory... done. Cleaning up... done. -------------------------------------------------------------- Build of enigma2_release completed. Processing own_build... done. Processing receiver specific own build for adb_box... done. Stripping... done. *************************************************************** Build of Enigma2 for adb_box successfully completed. ***************************************************************